1. Description
The standard range of HRS AquaPIV buffer vessels are mostly used in heating and chilled water systems. Other
applications may arise with different water temperatures and materials of construction. This manual covers for
mild steel vessels
Design Data
Maximum Working Pressure:
6.0 BarG
Hydraulic Test Pressure:
9.9 BarG
Maximum Working Temperature:
90°C
Design Code:
Commercial Standards and PED 1999 (SI 1999-2001) Cat: SEP
2. PED Information
The HRS Hevac standard range of buffer vessels are designed in accordance with the requirements of the Pressure
Equipment Directive 97/23/EC. Units classed as SEP in the PED category are not supplied with a CE mark. Units in
category I & II are CE marked and appropriate markings and certification is supplied with each unit.
It is the responsibility of the user and/or installer to ensure that the unit is installed and operated safely, and in
accordance with the instructions supplied within this manual. The standard AquaPIV unit is designed for a water
medium in the shell.
